Internet Engineering Task Force (IETF) S. Lawrence, Ed.
Request for Comments: 6011 Linden Research, Inc.
Category: Informational J. Elwell
ISSN: 2070-1721 Siemens Enterprise Communications
October 2010
Session Initiation Protocol (SIP) User Agent Configuration
Abstract
This document defines procedures for how a SIP User Agent should
locate, retrieve, and maintain current configuration information from
a Configuration Service.
Status of This Memo
This document is not an Internet Standards Track specification; it is
published for informational purposes.
This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Not all documents
approved by the IESG are a candidate for any level of Internet
Standard; see Section 2 of RFC 5741.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
http://www.rfc-editor.org/info/rfc6011.
Copyright Notice
Copyright (c) 2010 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of
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include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Lawrence & Elwell Informational [Page 1]
RFC 6011 SIP UA Configuration October 2010
Table of Contents
1. Introduction ....................................................3
1.1. Scope ......................................................3
1.2. Terminology ................................................3
1.3. User Agent Installation Examples ...........................4
1.3.1. Hosted IP Service Provider Example ..................5
1.3.2. IP-PBX Example ......................................5
1.3.3. Special Considerations for High Security
Deployments .........................................6
2. Obtaining User Agent Configuration ..............................6
2.1. Network Discovery ..........................................6
2.1.1. Link Layer Provisioning .............................7
2.1.2. Network Layer Provisioning ..........................7
2.2. Obtaining the Configuration Service Domain .................8
2.2.1. The Local Network Domain ............................8
2.2.2. Manual Domain Name Entry ............................8
2.3. Constructing the Configuration Request URL .................8
2.3.1. Obtaining a Configuration Service Base URL ..........9
2.3.2. Adding Configuration Request Parameters ............10
2.3.3. Configuration Request URI Example ..................12
2.4. Obtaining Configuration from the Configuration Service ....13
2.4.1. Configuration Data Request Authentication ..........13
2.4.2. Configuration Data Request Failure .................14
2.5. Configuration Changes .....................................15
2.5.1. Configuration Change Subscriptions .................16
2.5.2. Configuration Change Polling .......................18
2.6. Validity of Stored Configuration Data .....................19
2.6.1. Re-Validating Configuration Data ...................19
2.7. Retry Backoff Procedure ...................................20
3. Configuration Data .............................................20
3.1. Configuration Data Items ..................................20
3.1.1. Address-of-Record ..................................21
3.1.2. Realm ..............................................21
3.1.3. Username ...........................................21
3.1.4. Digest .............................................21
3.1.5. OutboundProxy ......................................21
3.2. Reset User Agent to Default Configuration .................21
4. IANA Considerations ............................................21
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